Gastrolobium pyramidale T.Moore

Scientific Description

Shrub, spindly shrub (broom-like). Stems angular, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, simple, opposite or whorled, continuous with stem, 20-80 mm long, 14-42 mm wide, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent; pustules or glands absent. Stipules present and persistent to older leaves, 5-9 mm long, without glands, ribless. Pedicel present, 3.2-4 mm long, hairy. Bracteoles present but early deciduous. Calyx 8.5-9 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 13.2-16 mm long, multicoloured, mostly yellow or orange, with some yellow or orange spots, streaks or blotches; claws present; standard 12-14.6 mm long, glabrous, auriculate, wings 11-13.2 mm long, auriculate, keel 10.7-13 mm long, not beaked, auriculate, glabrous. Stamens ten; anthers 0.6-0.8 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 6.5-12 mm long. Ovary sessile or subsessile, hairy or glandular; style 10.2-13 mm long, hairy or glandular towards the base, not bearded, terete. Fruit dehiscent (a pod or follicle), stipitate, not constricted between the seeds, round in cross-section, hairy, with simple hairs, not beaked. Flowers in September and October. Occurs in the South-West Botanical Province, in the Esperance IBRA regions.